September weather forecastChantimelle, Grenada
September
Weather in September
As autumn approaches, September sees a slight fall in temperatures. However, Chantimelle, Grenada maintains largely warm and humid conditions. Despite a decrease to 88mm (3.46"), September's rainfall spans across 22.6 days of the month. Wind speeds continue to decrease, measuring an average velocity of 21.6km/h (13.4mph), the slowest so far this year. With steady sun exposure and daylight hours, outdoor activities continue to be popular despite the intermittent rainfall.Temperature
September is Chantimelle's warmest month, registering average high temperatures of 28.8°C (83.8°F) and lows of 28.1°C (82.6°F).Heat index
The heat index for September is appraised at a tropical 33°C (91.4°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.Understand that the heat index values take into account shaded locations and mild winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
January, February and September, with an average relative humidity of 76%, are the least humid months in Chantimelle.Rainfall
In Chantimelle, during September, the rain falls for 22.6 days and regularly aggregates up to 88mm (3.46") of precipitation. In Chantimelle, during the entire year, the rain falls for 249.7 days and collects up to 774mm (30.47") of precipitation.Snowfall
The only month with snowfall is September. The month with the most snowfall days in Chantimelle is September, when snow falls for 0.1 days.Daylight
The average length of the day in September in Chantimelle is 12h and 11min.On the first day of September, sunrise is at 05:56 and sunset at 18:16. On the last day of the month, sunrise is at 05:55 and sunset at 17:57 AST.
Sunshine
In Chantimelle, the average sunshine in September is 10.5h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Chantimelle. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 7 during September leads to these advisories:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chantimelle, Grenada
- Average high temperature in September: 28.8°C
The warmest month (with the highest average high temperature) is September (28.8°C).
The month with the lowest average high temperature is February (26.7°C).
- Average low temperature in September: 28.1°C
The month with the highest average low temperature is September (28.1°C).
The coldest month (with the lowest average low temperature) is February (25.8°C).
Average pressure in September
Chantimelle, Grenada
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is June (1014.2mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed in September
Chantimelle, Grenada
- Average wind speed in September: 21.6km/h
The windiest month (with the highest average wind speed) is February (29.9km/h).
The calmest month (with the lowest average wind speed) is September (21.6km/h).
Average humidity in September
Chantimelle, Grenada
- Average humidity in September: 76%
The months with the highest relative humidity are May, June and July (79%).
The months with the lowest relative humidity are January, February and September (76%).
Average rainfall in September
Chantimelle, Grenada
- Average rainfall in September: 88mm
The wettest month (with the highest rainfall) is October (122mm).
The driest month (with the least rainfall) is February (26mm).
Average rainfall days in September
Chantimelle, Grenada
- Average rainfall days in September: 22.6 days
The month with the highest number of rainy days is August (25.1 days).
The month with the least rainy days is April (16 days).
Average snowfall days in September
Chantimelle, Grenada
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Chantimelle, Grenada
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in September: 10h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Chantimelle, Grenada
- Average sunshine days in September: 5 days
The month with the most sunshine days is March (7.8 days).
The month with the least sunshine days is August (3.3 days).
Average UV index in September
Chantimelle, Grenada
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Chantimelle, Grenada
- Average cloud cover in September: 35
The months with the most cloud cover are June, July and November (Cloud cover 42).
The month with the least cloud cover is September (Cloud cover 35).
Average visibility in September
Chantimelle, Grenada
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





